(*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2015 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 *)

{$INCLUDE "options.inc"}

unit uGearsList;

interface

uses uFloat, uTypes, SDLh;

function  AddGear(X, Y: LongInt; Kind: TGearType; State: Longword; dX, dY: hwFloat; Timer: LongWord): PGear;

function  AddGear(X, Y: LongInt; Kind: TGearType; State: Longword; dX, dY: hwFloat; Timer, newUid: LongWord): PGear;

procedure DeleteGear(Gear: PGear);

procedure InsertGearToList(Gear: PGear);

procedure RemoveGearFromList(Gear: PGear);

var curHandledGear: PGear;

implementation

uses uRandom, uUtils, uConsts, uVariables, uAmmos, uTeams, uStats,

    uTextures, uScript, uRenderUtils, uAI, uCollisions,

    uGearsRender, uGearsUtils, uDebug;

const

    GearKindAmmoTypeMap : array [TGearType] of TAmmoType = (

(*          gtFlame *)   amNothing

(*       gtHedgehog *) , amNothing

(*           gtMine *) , amMine

(*           gtCase *) , amNothing

(*        gtAirMine *) , amAirMine

(*     gtExplosives *) , amNothing

(*        gtGrenade *) , amGrenade

(*          gtShell *) , amBazooka

(*          gtGrave *) , amNothing

(*            gtBee *) , amBee

(*    gtShotgunShot *) , amShotgun

(*     gtPickHammer *) , amPickHammer

(*           gtRope *) , amRope

(*     gtDEagleShot *) , amDEagle

(*       gtDynamite *) , amDynamite

(*    gtClusterBomb *) , amClusterBomb

(*        gtCluster *) , amClusterBomb

(*         gtShover *) , amBaseballBat  // Shover is only used for baseball bat right now

(*      gtFirePunch *) , amFirePunch

(*    gtATStartGame *) , amNothing

(*   gtATFinishGame *) , amNothing

(*      gtParachute *) , amParachute

(*      gtAirAttack *) , amAirAttack

(*        gtAirBomb *) , amAirAttack

(*      gtBlowTorch *) , amBlowTorch

(*         gtGirder *) , amGirder

(*       gtTeleport *) , amTeleport

(*       gtSwitcher *) , amSwitch

(*         gtTarget *) , amNothing

(*         gtMortar *) , amMortar

(*           gtWhip *) , amWhip

(*       gtKamikaze *) , amKamikaze

(*           gtCake *) , amCake

(*      gtSeduction *) , amSeduction

(*     gtWatermelon *) , amWatermelon

(*     gtMelonPiece *) , amWatermelon

(*    gtHellishBomb *) , amHellishBomb

(*        gtWaterUp *) , amNothing

(*          gtDrill *) , amDrill

(*        gtBallGun *) , amBallgun

(*           gtBall *) , amBallgun

(*        gtRCPlane *) , amRCPlane

(*gtSniperRifleShot *) , amSniperRifle

(*        gtJetpack *) , amJetpack

(*        gtMolotov *) , amMolotov

(*          gtBirdy *) , amBirdy

(*            gtEgg *) , amBirdy

(*         gtPortal *) , amPortalGun

(*          gtPiano *) , amPiano

(*        gtGasBomb *) , amGasBomb

(*    gtSineGunShot *) , amSineGun

(*   gtFlamethrower *) , amFlamethrower

(*          gtSMine *) , amSMine

(*    gtPoisonCloud *) , amNothing

(*         gtHammer *) , amHammer

(*      gtHammerHit *) , amHammer

(*    gtResurrector *) , amResurrector

(*    gtPoisonCloud *) , amNothing

(*       gtSnowball *) , amSnowball

(*          gtFlake *) , amNothing

(*        gtLandGun *) , amLandGun

(*         gtTardis *) , amTardis

(*         gtIceGun *) , amIceGun

(*        gtAddAmmo *) , amNothing

(*  gtGenericFaller *) , amNothing

(*          gtKnife *) , amKnife

(*        gtCreeper *) , amCreeper

(*        gtMinigun *) , amMinigun

(*  gtMinigunBullet *) , amMinigun

(*         gtSentry *) , amSentry

    );

var GCounter: LongWord = 0; // this does not get re-initialized, but should be harmless

const

    cUsualZ = 500;

    cOnHHZ = 2000;

procedure InsertGearToList(Gear: PGear);

var tmp, ptmp: PGear;

begin

    tmp:= GearsList;

    ptmp:= GearsList;

    while (tmp <> nil) and (tmp^.Z < Gear^.Z) do

        begin

        ptmp:= tmp;

        tmp:= tmp^.NextGear

        end;

    if ptmp <> tmp then

        begin

        Gear^.NextGear:= ptmp^.NextGear;

        Gear^.PrevGear:= ptmp;

        if ptmp^.NextGear <> nil then

            ptmp^.NextGear^.PrevGear:= Gear;

        ptmp^.NextGear:= Gear

        end

    else

        begin

        Gear^.NextGear:= GearsList;

        if Gear^.NextGear <> nil then

            Gear^.NextGear^.PrevGear:= Gear;

        GearsList:= Gear;

        end;

end;

procedure RemoveGearFromList(Gear: PGear);

begin

if (Gear <> GearsList) and (Gear <> nil) and (Gear^.NextGear = nil) and (Gear^.PrevGear = nil) then

    begin

    AddFileLog('Attempted to remove Gear #'+inttostr(Gear^.uid)+' from the list twice.');

    exit

    end;

checkFails((Gear = nil) or (curHandledGear = nil) or (Gear = curHandledGear), 'You''re doing it wrong', true);

if Gear^.NextGear <> nil then

    Gear^.NextGear^.PrevGear:= Gear^.PrevGear;

if Gear^.PrevGear <> nil then

    Gear^.PrevGear^.NextGear:= Gear^.NextGear

else

    GearsList:= Gear^.NextGear;

Gear^.NextGear:= nil;

Gear^.PrevGear:= nil

end;

function AddGear(X, Y: LongInt; Kind: TGearType; State: Longword; dX, dY: hwFloat; Timer: LongWord): PGear;

begin

AddGear:= AddGear(X, Y, Kind, State, dX, dY, Timer, 0);

end;

function AddGear(X, Y: LongInt; Kind: TGearType; State: Longword; dX, dY: hwFloat; Timer, newUid: LongWord): PGear;

var gear: PGear;

    //c: byte;

    cakeData: PCakeData;

begin

if newUid = 0 then

    inc(GCounter);

AddFileLog('AddGear: #' + inttostr(GCounter) + ' (' + inttostr(x) + ',' + inttostr(y) + '), d(' + floattostr(dX) + ',' + floattostr(dY) + ') type = ' + EnumToStr(Kind));

New(gear);

FillChar(gear^, sizeof(TGear), 0);

gear^.X:= int2hwFloat(X);

gear^.Y:= int2hwFloat(Y);

gear^.Target.X:= NoPointX;

gear^.Kind := Kind;

gear^.State:= State;

gear^.Active:= true;

gear^.dX:= dX;

gear^.dY:= dY;

gear^.doStep:= doStepHandlers[Kind];

gear^.CollisionIndex:= -1;

gear^.Timer:= Timer;

if newUid = 0 then

     gear^.uid:= GCounter

else gear^.uid:= newUid;

gear^.SoundChannel:= -1;

gear^.ImpactSound:= sndNone;

gear^.Density:= _1;

// Define ammo association, if any.

gear^.AmmoType:= GearKindAmmoTypeMap[Kind];

gear^.CollisionMask:= lfAll;

gear^.Tint:= $FFFFFFFF;

gear^.Data:= nil;

gear^.Sticky:= false;

if CurrentHedgehog <> nil then

    begin

    gear^.Hedgehog:= CurrentHedgehog;

    if (CurrentHedgehog^.Gear <> nil) and (hwRound(CurrentHedgehog^.Gear^.X) = X) and (hwRound(CurrentHedgehog^.Gear^.Y) = Y) then

        gear^.CollisionMask:= lfNotCurHogCrate

    end;

if (Ammoz[Gear^.AmmoType].Ammo.Propz and ammoprop_NeedTarget <> 0) then

    gear^.Z:= cHHZ+1

else gear^.Z:= cUsualZ;

// set gstInBounceEdge if gear spawned inside the bounce world edge

if WorldEdge = weBounce then

    if (hwRound(gear^.X) - Gear^.Radius < leftX) or (hwRound(gear^.X) + Gear^.Radius > rightX) then

        case gear^.Kind of

            // list all gears here that could collide with the bounce world edge

            gtHedgehog,

            gtFlame,

            gtMine,

            gtAirBomb,

            gtDrill,

            gtNapalmBomb,

            gtCase,

            gtAirMine,

            gtExplosives,

            gtGrenade,

            gtShell,

            gtBee,

            gtDynamite,

            gtClusterBomb,

            gtMelonPiece,

            gtCluster,

            gtMortar,

            gtKamikaze,

            gtCake,

            gtWatermelon,

            gtGasBomb,

            gtHellishBomb,

            gtBall,

            gtRCPlane,

            gtSniperRifleShot,

            gtShotgunShot,

            gtDEagleShot,

            gtSineGunShot,

            gtMinigunBullet,

            gtEgg,

            gtPiano,

            gtSMine,

            gtSnowball,

            gtKnife,

            gtCreeper,

            gtSentry,

            gtMolotov,

            gtFlake,

            gtGrave,

            gtPortal,

            gtTarget:

            gear^.State := gear^.State or gstInBounceEdge;

        end;

case Kind of

          gtFlame: Gear^.Boom := 2;  // some additional expl in there are x3, x4 this

       gtHedgehog: Gear^.Boom := 30;

           gtMine: Gear^.Boom := 50;

           gtCase: Gear^.Boom := 25;

        gtAirMine: Gear^.Boom := 30;

     gtExplosives: Gear^.Boom := 75;

        gtGrenade: Gear^.Boom := 50;

          gtShell: Gear^.Boom := 50;

            gtBee: Gear^.Boom := 50;

    gtShotgunShot: Gear^.Boom := 25;

     gtPickHammer: Gear^.Boom := 6;

//           gtRope: Gear^.Boom := 2; could be funny to have rope attaching to hog deal small amount of dmg?

     gtDEagleShot: Gear^.Boom := 7;

       gtDynamite: Gear^.Boom := 75;

    gtClusterBomb: Gear^.Boom := 20;

     gtMelonPiece,

        gtCluster: Gear^.Boom := Timer;

         gtShover: Gear^.Boom := 30;

      gtFirePunch: Gear^.Boom := 30;

        gtAirBomb: Gear^.Boom := 30;

      gtBlowTorch: Gear^.Boom := 2;

         gtMortar: Gear^.Boom := 20;

           gtWhip: Gear^.Boom := 30;

       gtKamikaze: Gear^.Boom := 30; // both shove and explosion

           gtCake: Gear^.Boom := cakeDmg; // why is cake damage a global constant

     gtWatermelon: Gear^.Boom := 75;

    gtHellishBomb: Gear^.Boom := 90;

          gtDrill: if Gear^.State and gsttmpFlag = 0 then

                        Gear^.Boom := 50

                   else Gear^.Boom := 30;

           gtBall: Gear^.Boom := 40;

        gtRCPlane: Gear^.Boom := 25;

// sniper rifle is distance linked, this Boom is just an arbitrary scaling factor applied to timer-based-damage

// because, eh, why not..

gtSniperRifleShot: Gear^.Boom := 100000;

            gtEgg: Gear^.Boom := 10;

          gtPiano: Gear^.Boom := 80;

        gtGasBomb: Gear^.Boom := 20;

    gtSineGunShot: Gear^.Boom := 35;

          gtSMine: Gear^.Boom := 30;

    gtSnowball: Gear^.Boom := 200000; // arbitrary scaling for the shove

         gtHammer: if cDamageModifier > _1 then // scale it based on cDamageModifier?

                         Gear^.Boom := 2

                    else Gear^.Boom := 3;

    gtPoisonCloud: Gear^.Boom := 20;

          gtKnife: Gear^.Boom := 40000; // arbitrary scaling factor since impact-based

        gtCreeper: Gear^.Boom := 100;

  gtMinigunBullet: Gear^.Boom := 2;

         gtSentry: Gear^.Boom := 40;

    end;

case Kind of

     gtGrenade,

     gtClusterBomb,

     gtGasBomb: begin

                gear^.ImpactSound:= sndGrenadeImpact;

                gear^.nImpactSounds:= 1;

                gear^.AdvBounce:= 1;

                gear^.Radius:= 5;

                gear^.Elasticity:= _0_8;

                gear^.Friction:= _0_8;

                gear^.Density:= _1_5;

                gear^.RenderTimer:= true;

                if gear^.Timer = 0 then

                    gear^.Timer:= 3000

                end;

  gtWatermelon: begin

                gear^.ImpactSound:= sndMelonImpact;

                gear^.nImpactSounds:= 1;

                gear^.AdvBounce:= 1;

                gear^.Radius:= 6;

                gear^.Elasticity:= _0_8;

                gear^.Friction:= _0_995;

                gear^.Density:= _2;

                gear^.RenderTimer:= true;

                if gear^.Timer = 0 then

                    gear^.Timer:= 3000

                end;

  gtMelonPiece: begin

                gear^.AdvBounce:= 1;

                gear^.Density:= _2;

                gear^.Elasticity:= _0_8;

                gear^.Friction:= _0_995;

                gear^.Radius:= 4

                end;

    gtHedgehog: begin

                gear^.AdvBounce:= 1;

                gear^.Radius:= cHHRadius;

                gear^.Elasticity:= _0_35;

                gear^.Friction:= _0_999;

                gear^.Angle:= cMaxAngle div 2;

                gear^.Density:= _3;

                gear^.Z:= cHHZ;

                if (GameFlags and gfAISurvival) <> 0 then

                    if gear^.Hedgehog^.BotLevel > 0 then

                        gear^.Hedgehog^.Effects[heResurrectable] := 1;

                if (GameFlags and gfArtillery) <> 0 then

                    gear^.Hedgehog^.Effects[heArtillery] := 1;

                // this would presumably be set in the frontend

                // if we weren't going to do that yet, would need to reinit GetRandom

                // oh, and, randomising slightly R and B might be nice too.

                //gear^.Tint:= $fa00efff or ((random(80)+128) shl 16)

                //gear^.Tint:= $faa4efff

                //gear^.Tint:= (($e0+random(32)) shl 24) or

                //             ((random(80)+128) shl 16) or

                //             (($d5+random(32)) shl 8) or $ff

                {c:= GetRandom(32);

                gear^.Tint:= (($e0+c) shl 24) or

                             ((GetRandom(90)+128) shl 16) or

                             (($d5+c) shl 8) or $ff}

                end;

   gtParachute: begin

                gear^.Tag:= 1; // hog face dir. 1 = right, -1 = left

                gear^.Z:= cCurrHHZ;

                end;

       gtShell: begin

                gear^.Elasticity:= _0_8;

                gear^.Friction:= _0_8;

                gear^.Radius:= 4;

                gear^.Density:= _1;

                gear^.AdvBounce:= 1;

                end;

       gtSnowball: begin

                gear^.ImpactSound:= sndMudballImpact;

                gear^.nImpactSounds:= 1;

                gear^.Radius:= 4;

                gear^.Density:= _0_5;

                gear^.AdvBounce:= 1;

                gear^.Elasticity:= _0_8;

                gear^.Friction:= _0_8;

                end;

     gtFlake: begin

                with Gear^ do

                    begin

                    Pos:= 0;

                    Radius:= 1;

                    DirAngle:= random(360);

                    Sticky:= true;

                    if State and gstTmpFlag = 0 then

                        begin

                        dx.isNegative:= GetRandom(2) = 0;

                        dx.QWordValue:= QWord($40DA) * GetRandom(10000) * 8;

                        dy.isNegative:= false;

                        dy.QWordValue:= QWord($3AD3) * GetRandom(7000) * 8;

                        if GetRandom(2) = 0 then

                            dx := -dx;

                        Tint:= $FFFFFFFF

                        end

                    else

                        Tint:= (ExplosionBorderColor shr RShift and $FF shl 24) or

                               (ExplosionBorderColor shr GShift and $FF shl 16) or

                               (ExplosionBorderColor shr BShift and $FF shl 8) or $FF;

                    State:= State or gstInvisible;

                    // use health field to store current frameticks

                    if vobFrameTicks > 0 then

                        Health:= random(vobFrameTicks)

                    else

                        Health:= 0;

                    // use timer to store currently displayed frame index

                    if gear^.Timer = 0 then Timer:= random(vobFramesCount);

                    Damage:= (random(2) * 2 - 1) * (vobVelocity + random(vobVelocity)) * 8

                    end

                end;

       gtGrave: begin

                gear^.ImpactSound:= sndGraveImpact;

                gear^.nImpactSounds:= 1;

                gear^.Radius:= 10;

                gear^.Elasticity:= _0_6;

                gear^.Z:= 1;

                end;

         gtBee: begin

                gear^.Radius:= 5;

                if gear^.Timer = 0 then gear^.Timer:= 500;

                gear^.RenderTimer:= true;

                gear^.Elasticity:= _0_9;

                gear^.Tag:= 0;

                gear^.State:= Gear^.State or gstSubmersible

                end;

   gtSeduction: begin

                gear^.Radius:= cSeductionDist;

                end;

 gtShotgunShot: begin

                if gear^.Timer = 0 then gear^.Timer:= 900;

                gear^.Radius:= 2

                end;

  gtPickHammer: begin

                gear^.Radius:= 10;

                if gear^.Timer = 0 then gear^.Timer:= 4000

                end;

   gtHammerHit: begin

                gear^.Radius:= 8;

                if gear^.Timer = 0 then gear^.Timer:= 125

                end;

        gtRope: begin

                gear^.Radius:= 3;

                gear^.Friction:= _450 * _0_01 * cRopePercent;

                RopePoints.Count:= 0;

                gear^.Tint:= $D8D8D8FF;

                gear^.Tag:= 0; // normal rope render

                gear^.CollisionMask:= lfNotCurHogCrate //lfNotObjMask or lfNotHHObjMask;

                end;

        gtMine: begin

                gear^.ImpactSound:= sndMineImpact;

                gear^.nImpactSounds:= 1;

                gear^.Health:= 10;

                gear^.State:= gear^.State or gstMoving;

                gear^.Radius:= 2;

                gear^.Elasticity:= _0_55;

                gear^.Friction:= _0_995;

                gear^.Density:= _1;

                if gear^.Timer = 0 then

                    begin

                    if cMinesTime < 0 then